Man Dressed as Joker Stabs Passengers on Tokyo Train, Starts Fire, Injuring 17

In this still image obtained from a social media video, police officers work at a scene following a knife, arson, and acid attack at a Tokyo train line, in Tokyo, Japan, on Oct 31, 2021. @SIZ33/Twitter via Reuters

TOKYO—A 24-year-old man dressed in Batman’s Joker costume attacked passengers on a Tokyo train line on Sunday evening, injuring 17 people as many party-goers headed into the city centre for Halloween gatherings, media reported.

Police arrested the suspected attacker on the spot, media reported. A man believed to be in his 60s was unconscious and in critical condition after being stabbed, while witnesses also said the attacker had spread fluid around the train and started a fire, according to media.